Reducing agent

The video explains the process of electron transfer during chemical reactions, focusing on how lead can be extracted from lead oxide using carbon as a reducing agent. When lead oxide and carbon are heated together, carbon removes oxygen from lead oxide, resulting in the formation of carbon dioxide gas and lead.

What is the primary focus of a redox reaction?

• The transfer of atoms between substances

• The transfer of neutrons between substances

• The transfer of electrons between substances

• The transfer of protons between substances

Which substance is used as a reducing agent to extract lead from lead oxide?

• Nitrogen

• Oxygen

• Hydrogen

• Carbon

What happens when carbon is mixed and heated with lead oxide?

• Carbon forms carbon monoxide and oxygen

• Carbon forms carbon dioxide and lead

• Carbon forms carbon monoxide and lead

• Carbon forms carbon dioxide and oxygen

What gas is produced during the reaction between carbon and lead oxide?

• Carbon dioxide

• Carbon monoxide

• Hydrogen

• Oxygen

What is the final product obtained from the reaction of lead oxide with carbon?

• Lead and carbon dioxide

• Lead and carbon monoxide

• Lead and water

• Lead and oxygen